Contents
- 1 Kinematics
- 2 HRS Calibration
- 2.1 HRS(L) and HRS (R) Elastic C(e,e') [ and Ta(e,e')]
- 2.2 HRS(L) and HRS (R), Quasi Elastic C(e,e')
- 2.3 HRS(L) and HRS (R), Delta resonance C(e,e') - One pass
- 2.4 HRS(L) and HRS (R), Delta resonance C(e,e') - Two pass
- 2.5 HRS(L) and HRS (R) H(e,e'p)
- 2.6 HRS(L) and HRS (R) H(e,e'p)
- 2.7 Quasi Elastic C(e,e'p)
- 2.8 HRS(L) and HRS (R) C(e,e'p)
- 3 BigBite Calibration
- 4 Neutron Array calibration
- 5 Production
- 6 Production (alternative) Q2=1.8
Kinematics
Kinematic Calculators
HRS Calibration
HRS(L) and HRS (R) Elastic C(e,e') [ and Ta(e,e')]
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Electrons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
H#
|
|
P(e')
|
Theta (e')
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P
|
Theta
|
|
|
|
1
|
1160
|
1202.1 (1206.1)
|
15
|
1202.1 (1206.1)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
2
|
1160
|
1179 (1182.9)
|
15
|
1179 (1182.9)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
3
|
1160
|
1155.9 (1159.7)
|
15
|
1155.9 (1159.7)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
4
|
1160
|
1132.8 (1136.5)
|
15
|
1132.8 (1136.5)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
5
|
1160
|
1109.6 (1113.3)
|
15
|
1109.6 (1113.3)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
- The setup is according the Elastic scattering from Carbon
- Values in brackets for Ta
- With Sieve slit In/Out and multi foil target
- Additional run at H3 kinematics with raster on
HRS(L) and HRS (R), Quasi Elastic C(e,e')
Original Kin Table
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Electrons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
I #
|
|
P(e')
|
Theta (e')
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P
|
Theta
|
|
|
|
1
|
1160
|
1157.6
|
15
|
1157.6
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
2
|
1160
|
1135.4
|
15
|
1135.4
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
3
|
1160
|
1113.1
|
15
|
1113.1
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
4
|
1160
|
1090.84
|
15
|
1090.84
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
5
|
1160
|
1068.6
|
15
|
1068.6
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
- Calibration for relative acceptance measurement With Sieve slit In/Out
HRS(L) and HRS (R), Delta resonance C(e,e') - One pass
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Electrons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
L #
|
|
P(e')
|
Theta (e')
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P
|
Theta
|
|
|
|
1
|
1160
|
818.2
|
15
|
818.2
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
2
|
1160
|
802.4
|
15
|
802.4
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
3
|
1160
|
786.7
|
15
|
786.7
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
4
|
1160
|
770.9
|
15
|
770.9
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
5
|
1160
|
755.2
|
15
|
755.2
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
- W^2 = M^2 - Q^2 + 2*M*nu (W=1232 MeV)
- Calibration for relative acceptance measurement With Sieve slit In/Out
HRS(L) and HRS (R), Delta resonance C(e,e') - Two pass
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Electrons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
M #
|
|
P(e')
|
Theta (e')
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P
|
Theta
|
|
|
|
1
|
2258
|
1843.4
|
15
|
1843.4
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
2
|
2258
|
1807.9
|
15
|
1807.9
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
3
|
2258
|
1772.5
|
15
|
1772.5
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
4
|
2258
|
1737
|
15
|
1737
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
5
|
2258
|
1701.6
|
15
|
1701.6
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
- Calibration for relative acceptance measurement With Sieve slit In/Out
HRS(L) and HRS (R) H(e,e'p)
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Protons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
G#
|
|
P(e')
|
Theta (e')
|
P(p)
|
Theta (p)
|
P
|
Theta
|
P
|
Theta
|
|
|
|
1
|
1160
|
820
|
48.3
|
867
|
-44.92
|
|
|
|
|
LH2
|
Kin Map
|
|
2
|
2258
|
1605
|
33.8
|
1285
|
-44.01
|
|
|
|
|
LH2
|
Kin Map
|
|
HRS(L) and HRS (R) H(e,e'p)
Kin
|
Ein [MeV]
|
HRS(L) Protons
|
HRS(R) Electrons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
G#
|
|
P(p)
|
Theta (p)
|
P(e)
|
Theta (e)
|
P
|
Theta
|
P
|
Theta
|
|
|
|
3
|
2258
|
1285
|
44.01
|
1605
|
-33.8
|
|
|
|
|
LH2
|
Kin Map
|
|
Quasi Elastic C(e,e'p)
- This calibration should be done AFTER polarity change
Kin
|
Ein [MeV]
|
HRS(L) Protons
|
HRS(R) Electrons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
G#
|
|
P(p)
|
Theta (p)
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P
|
Theta
|
|
|
|
4
|
2258
|
592
|
65.84
|
2086.8
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
5
|
2258
|
493
|
69.54
|
2136.1
|
-12.5
|
|
|
|
|
Carbon
|
Kin Map
|
|
HRS(L) and HRS (R) C(e,e'p)
Original kin table
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Protons
|
BigBite
(not in use)
|
Neutron Arm
(not in use)
|
Target
|
Plots
|
MCEEP
|
F #
|
|
P(e')
|
Theta (e')
|
P(p)
|
Theta (p)
|
P
|
Theta
|
P
|
Theta
|
|
|
|
1
|
4462
|
3518.5
|
15
|
1400
|
-40.57
|
|
|
|
|
Carbon
|
Kin Map
|
|
2
|
4462
|
3518.5
|
15
|
1400
|
-40.57
|
|
|
|
|
Multi Foil Carbon
|
Kin Map
|
|
- 4 pass calibration at x=1, with sieve slit In/Out
BigBite Calibration
Iportant : BB calibration can't be done with 3 or 4 pass because we can't lower the HRS left angle below 12.5 deg and BB angle lower than ~ 70 Deg.
H(e,e'p) HRS(L) and BigBite
- We do not know how to get within the constrains protons of more than 600 MeV/c to BB for Calibration.
- 1st pass is not sure due to Qweak
Full acceptance calibration of BigBite C(e,e'p) and C(e,p)
Kin
|
Ein [MeV]
|
HRS(L) (Electrons)
|
HRS(R) (not in use)
(not in use)
|
BigBite
(-68 Deg)*
|
Neutron Arm
(not in use, at 50 deg)
|
Target
|
Plots
|
MCEEP
|
B#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
1
|
2258
|
2087
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
1 mm Carbon
|
Kin Map
|
|
2
|
2258
|
2087
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
multifoil Carbon
|
Kin Map
|
|
3*
|
2258
|
2087
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
multifoil Carbon
|
Kin Map
|
|
4*
|
2258
|
2087
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
multifoil Carbon
|
Kin Map
|
|
- 3* Same as B2 with Sieve Slit
- 4* Same as B2 with Sieve Slit and no Field in BigBite
Full acceptance calibration of BigBite d(e,e'p) and d(e,p)
Kin
|
Ein [MeV]
|
HRS(L) (Electrons)
|
HRS(R) (not in use)
(not in use)
|
BigBite
(-68 Deg)*
|
Neutron Arm
(not in use, at 50 deg)
|
Target
|
Plots
|
MCEEP
|
C#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
1
|
2258
|
2086.8
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
4 cm LD2
|
Kin Map
|
|
Neutron Array calibration
H(e,e'p) HRS(L) and Neutron Array for protons
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R)
(not in use)
|
BigBite
(Not in use)
|
Neutron Arm
no lead wall
50 Deg 15m from target
|
Target
|
Plots
|
MCEEP
|
D#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
1
|
2258#.
|
27.6
|
|
-12.5
|
|
-68
|
1071
|
-50.07
|
4 cm LH2
|
Kin Map
|
|
This can also be done with 4.4 GeV beam and E' of 3.9 GeV and 12.5 degrees with the proton going with 1 GeV to 57 degrees. MUCH higher cross section if done with 4th pass. Not sure why done with 2nd pass?!
d(e,e'pn) x<1 HRS(L), HRS(R) and Neutron Array (n - efficiency)
Kin
|
Ein [MeV]
|
HRS(L) PROTONS
|
HRS(R) ELECTRONS
|
BigBite at -99 Deg, Magnet on
detector off
|
Neutron Arm
Behind BigBite and lead wall
|
Target
|
Plots
|
MCEEP
|
E#
|
|
P(p)
|
Theta (p)
|
P(e')
|
Theta(e')
|
P
|
Theta
|
P(n)
|
Theta(n)
|
|
|
|
1
|
2262
|
778.7
|
59.2
|
1948.7
|
-12.5
|
|
-99
|
250
|
-99
|
4 cm LH2
|
Kin Map
|
|
2
|
2262
|
985.8
|
51.9
|
1757.9
|
-12.5
|
|
-99
|
400
|
-99
|
4 cm LH2
|
Kin Map
|
|
- In this calibration we need to switch the polarity of HRS arms.
^ First Kinematics cross section of 0.7E-7 fm^2/MeV/sr^2 BUT recoil is only 250 MeV/c. TOO SMALL?! (i.e. below physics range)
^ Second Kinematics cross section of 0.6E-8 fm^2/MeV/sr^2 for recoil of 400 MeV/c
4400 GeV beam 4068 & 12.5 electron with -35.5 & 628 proton which will put a 527 MeV/c neutron into 99 degrees. [MCEEP PWBA sigma of 0.8E-9 fm^2/MeV/sr^2 BUT should x10 higher due to FSI in these kinematics]
For cm of exactly 90 4400 GeV beam 12.5 electron and 15 degrees proton at 700 MeV/c 0.1E-9 {no FSI in simulation}
Production
D(e,e'pn) Triple coincidence for x>1
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Protons
|
BigBite
|
Neutron Arm
|
Target
|
Plots
|
MCEEP
|
K#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
2
|
4454
|
3601.4
|
20.33
|
1375.8
|
-33.4
|
500
|
-98.23
|
500
|
-98.23
|
4 cm LD2
|
Kin Map
|
|
6
|
4454
|
3601.4
|
20.33
|
1468.9
|
-40.5
|
300
|
-97.63
|
300
|
-97.63
|
4 cm LD2
|
Kin Map
|
|
Kin2 above is 0.16E-10 fm-2/MeV/sr2 (0.04 (e,e'p) events per sec.) or ~2 events per minute (15cm target)
Kin6 above is 0.3E-9 fm-2/MeV/sr2
He(e,e'pp)/(e,e'pn) Triple coincidence for x>1
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Protons
|
BigBite
|
Neutron Arm
|
Target
|
Plots
|
MCEEP
|
K#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
1
|
4454
|
3601.4
|
20.33
|
1427.6
|
-36.9
|
400
|
-99.29
|
400
|
-99.29
|
4 cm LHe4
|
Kin Map
|
|
2
|
4454
|
3601.4
|
20.33
|
1375.8
|
-33.4
|
500
|
-98.23
|
500
|
-98.23
|
4 cm LHe4
|
Kin Map
|
|
3
|
4454
|
3601.4
|
20.33
|
1296.6
|
-29
|
625
|
-95.22
|
625
|
-95.22
|
4 cm LHe4
|
Kin Map
|
|
4
|
4454
|
3601.4
|
20.33
|
1201
|
-24.45
|
754.7
|
-91.22
|
754.7
|
-91.22
|
4 cm LHe4
|
Kin Map
|
|
5
|
4454
|
3601.4
|
20.33
|
1099.2
|
-20.1
|
875
|
-87.06
|
875
|
-87.06
|
4 cm LHe4
|
Kin Map
|
|
Production (alternative) Q2=1.8
Notice : Mott Cross Section Q2=1.8 GeV^2 / Mott Cross Section Q2=2 GeV^2 = 1.32
D(e,e'pn) Triple coincidence for x>1
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Protons
|
BigBite
|
Neutron Arm
|
Target
|
Plots
|
MCEEP
|
L#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
1
|
4454
|
3686.6
|
19.06
|
1270.8
|
-34
|
500
|
-99.68
|
500
|
-99.68
|
4 cm LD2
|
Kin Map
|
|
2
|
4454
|
3686.6
|
19.06
|
1366.9
|
-41.65
|
300
|
-99.97
|
300
|
-99.97
|
4 cm LD2
|
Kin Map
|
|
He(e,e'pp)/(e,e'pn) Triple coincidence for x>1
Kin
|
Ein [MeV]
|
HRS(L) Electrons
|
HRS(R) Protons
|
BigBite
|
Neutron Arm
|
Target
|
Plots
|
MCEEP
|
M#
|
|
P(e')
|
Theta (e')
|
P
|
Theta
|
P(p)
|
Theta (p)
|
P
|
Theta
|
|
|
|
1
|
4454
|
3686.6
|
19.06
|
1323.97
|
-37.75
|
400
|
-101.14
|
400
|
-101.14
|
4 cm LHe4
|
Kin Map
|
|
2
|
4454
|
3686.6
|
19.06
|
1270.8
|
-34
|
500
|
-99.68
|
500
|
-99.68
|
4 cm LHe4
|
Kin Map
|
|
3
|
4454
|
3686.6
|
19.06
|
1190.2
|
-29.3
|
625
|
-96.3
|
625
|
-96.3
|
4 cm LHe4
|
Kin Map
|
|
4
|
4454
|
3686.6
|
19.06
|
1090.1
|
-24.3
|
755.5
|
-91.83
|
755.5
|
-91.83
|
4 cm LHe4
|
Kin Map
|
|
5
|
4454
|
3686.6
|
19.06
|
984.13
|
-19.55
|
875
|
-87.25
|
875
|
-87.25
|
4 cm LHe4
|
Kin Map
|
|